contextlib.ExitStack abuses __self__ #77446

assignee = None
closed_at = <Date 2018-04-13.12:25:09.795>
created_at = <Date 2018-04-12.05:24:50.947>
labels = ['3.8', 'library', 'performance']
title = 'contextlib.ExitStack abuses __self__'
updated_at = <Date 2018-04-13.12:25:09.793>
user = 'https://github.com/jdemeyer'

activity = <Date 2018-04-13.12:25:09.793>
actor = 'ncoghlan'
assignee = 'none'
closed = True
closed_date = <Date 2018-04-13.12:25:09.795>
closer = 'ncoghlan'
components = ['Library (Lib)']
creation = <Date 2018-04-12.05:24:50.947>
creator = 'jdemeyer'
dependencies = []
files = []
hgrepos = []
issue_num = 33265
keywords = ['patch']
message_count = 5.0
messages = ['315212', '315221', '315239', '315243', '315244']
nosy_count = 3.0
nosy_names = ['ncoghlan', 'jdemeyer', 'yselivanov']
pr_nums = ['6456']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'performance'
url = 'https://bugs.python.org/issue33265'
versions = ['Python 3.8']